Hybrid internet protocol encryptor/decryptor bypass device

Details Hybrid internet protocol encryptor/decryptor bypass device Hybrid internet protocol encryptor/decryptor bypass device

2007-05-03

2010-11-23

Nguyen, Thu (Department: 2452)

Electrical computers and digital processing systems: multicomput

Multiple network interconnecting

C709S247000, C709S250000, C370S235000, C370S392000, C370S466000, C370S467000, C713S153000, C713S160000, C713S162000

Reexamination Certificate

active

07840712

ABSTRACT:
A system (706, 714) is provided for a network signaling bypass around a cryptographic device (1008, 1108). The system is comprised of an interface (1002, 1102) configured to receive a plurality of packets and communicate the packets that are of a non-GIST type to a non-GIST bypass circuit (1004-1, 1004-2) and the packets that are of a GIST type to a GIST bypass circuit (1006-1, 1006-2). The non-GIST bypass circuit is configured to selectively bypass a first packet around the cryptographic device to an output device (1010, 1110, 1012, 1112) if the first packet comprises signaling protocol data for a network (710) over which the first packet is communicated. The GIST bypass circuit is configured to selectively bypass a second packet around the cryptographic device to the output device if the second packet comprises GIST signaling transport protocol data for the network over which the second packet is communicated.

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Fu, et al., “NSIS: A New Extensible IP Signaling Protocol Suite”, IEEE Communications Magazine, Internet Technology Series, Oct. 2005. Found at http://www.tmg.informatik.uni-goettingen.de/publications/1216/NSIS—CommMag05.pdf.
Schulzrinne, et al., “Next Steps in Signaling” Internet-Draft, GIST: General Internet Signaling Transport Columbia University, Aug. 31, 2006. Found at: http://www.ietf.org/internet-drafts/draft-ietf-nsis-ntlp-11.txt.

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